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If a+b+c=0, Then The Quadratic Equation 3aX^2+2bX+c=0

Sujoy Das

07/02/2018 3 0

Question:

If a+b+c=0, then the quadratic equation 3aX^2+2bX+c=0 has

1) at least one root in (0,1)
2) one root in (2,3)and the other on (-2,-1)
3) imaginary roots
4) none of these

Answer:

a = 1 ;b = -1 ; c = 0
3x^2 - 2x = 0
x(3x - 2) = 0
x = 0 ; 2/3 option 1 correct.

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